X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-core%2Fhashmap.c;h=9b55bd316bcc258604443d902918f2f5b29c383a;hb=9c0f9c65093cfa53d45f9b68782321eb8063a032;hp=0c44d4ff5920d2439744bc6f04e437f459015f4b;hpb=6e35536bddb52c8e6bc201265c77a846d879b5a3;p=catta diff --git a/avahi-core/hashmap.c b/avahi-core/hashmap.c index 0c44d4f..9b55bd3 100644 --- a/avahi-core/hashmap.c +++ b/avahi-core/hashmap.c @@ -1,18 +1,16 @@ -/* $Id$ */ - /*** This file is part of avahi. - + avahi is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. - + avahi is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. - + You should have received a copy of the GNU Lesser General Public License along with avahi; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 @@ -49,7 +47,7 @@ struct AvahiHashmap { AvahiHashFunc hash_func; AvahiEqualFunc equal_func; AvahiFreeFunc key_free_func, value_free_func; - + Entry *entries[HASH_MAP_SIZE]; AVAHI_LLIST_HEAD(Entry, entries_list); }; @@ -57,9 +55,9 @@ struct AvahiHashmap { static Entry* entry_get(AvahiHashmap *m, const void *key) { unsigned idx; Entry *e; - + idx = m->hash_func(key) % HASH_MAP_SIZE; - + for (e = m->entries[idx]; e; e = e->bucket_next) if (m->equal_func(key, e->key)) return e; @@ -69,6 +67,7 @@ static Entry* entry_get(AvahiHashmap *m, const void *key) { static void entry_free(AvahiHashmap *m, Entry *e, int stolen) { unsigned idx; + assert(m); assert(e); idx = m->hash_func(e->key) % HASH_MAP_SIZE; @@ -86,11 +85,11 @@ static void entry_free(AvahiHashmap *m, Entry *e, int stolen) { AvahiHashmap* avahi_hashmap_new(AvahiHashFunc hash_func, AvahiEqualFunc equal_func, AvahiFreeFunc key_free_func, AvahiFreeFunc value_free_func) { AvahiHashmap *m; - + assert(hash_func); assert(equal_func); - if (!(m = avahi_new(AvahiHashmap, 1))) + if (!(m = avahi_new0(AvahiHashmap, 1))) return NULL; m->hash_func = hash_func; @@ -98,10 +97,8 @@ AvahiHashmap* avahi_hashmap_new(AvahiHashFunc hash_func, AvahiEqualFunc equal_fu m->key_free_func = key_free_func; m->value_free_func = value_free_func; - memset(m->entries, 0, sizeof(m->entries)); - AVAHI_LLIST_HEAD_INIT(Entry, m->entries_list); - + return m; } @@ -110,33 +107,19 @@ void avahi_hashmap_free(AvahiHashmap *m) { while (m->entries_list) entry_free(m, m->entries_list, 0); - + avahi_free(m); } void* avahi_hashmap_lookup(AvahiHashmap *m, const void *key) { Entry *e; - - assert(m); - - if (!(e = entry_get(m, key))) - return NULL; - return e->value; -} - -void* avahi_hashmap_steal(AvahiHashmap *m, const void *key) { - Entry *e; - void *v; - assert(m); if (!(e = entry_get(m, key))) return NULL; - v = e->value; - entry_free(m, e, 1); - return v; + return e->value; } int avahi_hashmap_insert(AvahiHashmap *m, void *key, void *value) { @@ -150,7 +133,7 @@ int avahi_hashmap_insert(AvahiHashmap *m, void *key, void *value) { m->key_free_func(key); if (m->value_free_func) m->value_free_func(value); - + return 1; } @@ -165,7 +148,7 @@ int avahi_hashmap_insert(AvahiHashmap *m, void *key, void *value) { idx = m->hash_func(key) % HASH_MAP_SIZE; AVAHI_LLIST_PREPEND(Entry, bucket, m->entries[idx], e); - + return 0; } @@ -184,7 +167,7 @@ int avahi_hashmap_replace(AvahiHashmap *m, void *key, void *value) { e->key = key; e->value = value; - + return 1; } @@ -199,14 +182,13 @@ int avahi_hashmap_replace(AvahiHashmap *m, void *key, void *value) { idx = m->hash_func(key) % HASH_MAP_SIZE; AVAHI_LLIST_PREPEND(Entry, bucket, m->entries[idx], e); - + return 0; } - void avahi_hashmap_remove(AvahiHashmap *m, const void *key) { Entry *e; - + assert(m); if (!(e = entry_get(m, key))) @@ -215,10 +197,24 @@ void avahi_hashmap_remove(AvahiHashmap *m, const void *key) { entry_free(m, e, 0); } +void avahi_hashmap_foreach(AvahiHashmap *m, AvahiHashmapForeachCallback callback, void *userdata) { + Entry *e, *next; + assert(m); + assert(callback); + + for (e = m->entries_list; e; e = next) { + next = e->entries_next; + + callback(e->key, e->value, userdata); + } +} + unsigned avahi_string_hash(const void *data) { const char *p = data; unsigned hash = 0; + assert(p); + for (; *p; p++) hash = 31 * hash + *p; @@ -228,22 +224,25 @@ unsigned avahi_string_hash(const void *data) { int avahi_string_equal(const void *a, const void *b) { const char *p = a, *q = b; + assert(p); + assert(q); + return strcmp(p, q) == 0; } -unsigned avahi_domain_hash(const void *data) { - unsigned hash = 0; - const char *s; - - for (;;) { - char c[65]; - - if (!avahi_unescape_label(&s, c, sizeof(c))) - return hash; - - if (!c[0]) - continue; - - hash += avahi_string_hash(avahi_strdown(c)); - } +unsigned avahi_int_hash(const void *data) { + const int *i = data; + + assert(i); + + return (unsigned) *i; +} + +int avahi_int_equal(const void *a, const void *b) { + const int *_a = a, *_b = b; + + assert(_a); + assert(_b); + + return *_a == *_b; }